Quantcast

Latest Gamma-ray bursts Stories

Gamma ray burst buried in dust
2014-06-12 04:59:01

redOrbit Staff & Wire Reports - Your Universe Online For the first time ever, scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) have discovered molecular gas in galaxies that had once been rocked by gamma ray bursts, according to new research published Wednesday in the journal Nature. The new observations reveal that the molecular gas, which serves as the fuel for the star formation process, was concentrated towards the center of the galaxies, the study...

Watch Out Buggles, Black Hole Also Killed The Radio Star
2013-12-20 14:37:23

Lee Rannals for redOrbit.com - Your Universe Online Astronomers have discovered a new type of exploding star that exhausts all its energy before collapsing into a black hole. Scientists believed all gamma-ray bursts were followed by a radio afterglow, so Australian astronomers of the Centre for All-sky Astrophysics (CAASTRO) at Curtin University and the University of Sydney decided to set out to prove this theory. Instead they discovered a new population of exploding stars that switched...

Shockingly Bright Gamma-Ray Burst Observed By Fermi, Swift
2013-05-06 04:44:26

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online On Saturday, April 27, the Fermi Gamma-ray Telescope detected a sudden, powerful flux of high-energy gamma-rays, indicating a historic burst event in a distant galaxy. The instrument then notified other telescopes located in space and on the ground that a Gamma-ray Burst (GRB) had been detected. Fermi´s main instrument the Large Area Telescope (LAT) detected gamma-rays as high as 94 giga-electron volts (GeV),...

68fe7926ebe33bb79000e2e90474d3c0
2011-07-01 10:05:50

ESA's Integral gamma-ray observatory has provided results that will dramatically affect the search for physics beyond Einstein. It has shown that any underlying quantum "Ëœgraininess' of space must be at much smaller scales than previously predicted. Einstein's General Theory of Relativity describes the properties of gravity and assumes that space is a smooth, continuous fabric. Yet quantum theory suggests that space should be grainy at the smallest scales, like sand on a...

2011-04-07 10:38:00

WASHINGTON, April 7, 2011 /PRNewswire-USNewswire/ -- A new supercomputer simulation shows the collision of two neutron stars can naturally produce the magnetic structures thought to power the high-speed particle jets associated with short gamma-ray bursts (GRBs). The study provides the most detailed glimpse of the forces driving some of the universe's most energetic explosions. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The state-of-the-art simulation ran for nearly...

4db0586d74643901d377be2e4262b27f1
2009-06-16 08:45:00

An enormous eruption has found its way to Earth after traveling for many thousands of years across space. Studying this blast with ESA's XMM-Newton and Integral space observatories, astronomers have discovered a dead star belonging to a rare group: the magnetars. X-Rays from the giant outburst arrived on Earth on 22 August 2008, and triggered an automatic sensor on the NASA-led, international Swift satellite. Just twelve hours later, XMM-Newton zeroed in and began to collect the radiation,...

ea37aa40511b1c09e18fa71b746e963a
2009-04-03 07:10:00

Integral has captured one of the brightest gamma-ray bursts ever seen. A meticulous analysis of the data has allowed astronomers to investigate the initial phases of this giant stellar explosion, which led to the ejection of matter at velocities close to the speed of light. In particular, the astronomers believe that the explosion lifted a piece of the central engine's magnetic field into space. On 19 December 2004, the blast from an exploding star arrived at Earth. ESA's Integral...

bea386f53e474664ea750699173d087d
2009-03-02 14:00:00

UK astronomers, using a telescope aboard the NASA Swift Satellite, have captured information from the early stages of a gamma ray burst - the most violent and luminous explosions occurring in the Universe since the Big Bang. The work was published on Friday 27th February in the Monthly Notices of the Royal Astronomical Society. Swift is able to both locate and point at gamma ray bursts (GRBs) far quicker than any other telescope, so by using its Ultraviolet/Optical Telescope (UVOT) the...

2008-01-09 13:30:00

Oldest known short gamma ray burst occurred halfway back to Big Bang Using the powerful one-two combo of NASA's Swift satellite and the Gemini Observatory, astronomers from a number of institutions, including Johns Hopkins, have detected a mysterious type of cosmic explosion farther back in time than ever before. The explosion, known as a short gamma-ray burst (GRB), took place 7.4 billion years ago, more than halfway back to the Big Bang. "This discovery dramatically moves back the time at...

ef5817acbfe8f0e1ff92e80a23ac16d31
2008-01-08 11:40:04

Using the powerful one-two combo of NASA's Swift satellite and the Gemini Observatory, astronomers have detected a mysterious type of cosmic explosion farther back in time than ever before. The explosion, known as a short gamma-ray burst (GRB), took place 7.4 billion years ago, more than halfway back to the Big Bang. "This discovery dramatically moves back the time at which we know short GRBs were exploding. The short burst is almost twice as far as the previous confirmed record holder," says...


Latest Gamma-ray bursts Reference Libraries

6_f5324ad7d5514381282c99963af8be7c2
2004-10-19 04:45:41

Gamma-Ray Burst -- In astronomy, Gamma-ray bursters (GRBs) are flashes of gamma rays that last from seconds to hours, the longer ones being followed by several days of X-ray afterglow. They occur at random positions in the sky several times each day. They are now believed to result from tremendous explosions in far away galaxies, during the creation of a black hole from a dying star or two colliding neutron stars. The black hole, surrounded by a rotating disk of matter falling into it,...

More Articles (1 articles) »
Word of the Day
barghest
  • A goblin in English folklore, often appearing in the shape of a large dog and believed to portend imminent death or misfortune.
  • A ghost, wraith, hobgoblin, elf, or spirit.
The origin of 'barghest' is not known, but it may be from perhaps burh-ghest, town-ghost, or German Berg-geist (mountain spirit) or Bär-geist (bear-spirit).
Related